Informatica Quiz
| Description: Informatica Quiz | |
| Number of Questions: 11 | |
| Created by: Aliensbrain Bot | |
| Tags: informatica etl |
Informatica Is?
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ETL
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Reporting
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Modeling
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None
AI Explanation
To answer this question, you need to understand the concept of Informatica.
Option A) ETL - This option is correct. Informatica is a popular software platform used for Extract, Transform, and Load (ETL) processes. It is commonly used in data integration and data warehousing projects to extract data from various sources, transform it into a suitable format, and load it into a target database or data warehouse.
Option B) Reporting - This option is incorrect. While Informatica can be used to support reporting activities by providing clean and accurate data, its primary functionality lies in ETL processes rather than reporting.
Option C) Modeling - This option is incorrect. Informatica does not primarily focus on data modeling. However, it can be used in conjunction with other tools to support data modeling activities.
Option D) None - This option is incorrect. Informatica is a well-known software platform used for ETL processes and is widely used in the industry.
The correct answer is A) ETL. This option is correct because Informatica is commonly used for Extract, Transform, and Load (ETL) processes in data integration and data warehousing projects.
Which one is reusable component in Informatica?
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Mapping
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Mapplet
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Session
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Workflow
To answer this question, the user needs to have some basic knowledge of Informatica.
In Informatica, a reusable component is a type of component that can be used in multiple locations within the same project or across multiple projects.
Now, let's look at each option and determine which one is a reusable component:
A. Mapping: A mapping is a set of instructions that defines how data is transformed from source to target. While a mapping can be reused in the same project, it cannot be reused across multiple projects. Therefore, mapping is not a reusable component.
B. Mapplet: A mapplet is a reusable set of transformations that can be used in multiple mappings. Mapplets are designed for reuse and can be used across projects, making them a reusable component.
C. Session: A session is a set of instructions that defines how a mapping is run, including the connections, sources, targets, and transformations. While a session can be used in multiple mappings within the same project, it cannot be reused across multiple projects. Therefore, session is not a reusable component.
D. Workflow: A workflow is a set of instructions that defines how and when a session or a set of sessions is run. While a workflow can be used in multiple mappings within the same project, it cannot be reused across multiple projects. Therefore, workflow is not a reusable component.
Based on the above explanations, the correct answer is:
The Answer is: B. Mapplet
which is the minimum transformation required in mpping
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Source qualifier
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source and target
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Filter
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None of the above
Which of the following transformation is not a Active transformation
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Aggregator
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Union
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Lookup
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Source Qualifier
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Extraction,transformation and loading
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Extract transactions and load
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Enable transactions and load
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All the above
Which of the following is Informatica PowerCenter Client Tools
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Designer
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Workflow Manager,Metadata Reporter
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Repository Manager
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All the above
which of the following is unconnected transformation
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stored procedure
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Filter
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sorter
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joiner
AI Explanation
To answer this question, we need to understand what each transformation does and determine which one is unconnected.
Option A) Stored Procedure - This option is correct because a stored procedure in data integration is an example of an unconnected transformation. An unconnected transformation is not directly connected to the data flow and is usually called from another transformation or mapping.
Option B) Filter - This option is incorrect. A filter transformation is a connected transformation that allows you to filter rows based on specified conditions.
Option C) Sorter - This option is incorrect. A sorter transformation is a connected transformation that sorts data based on specified criteria.
Option D) Joiner - This option is incorrect. A joiner transformation is a connected transformation that combines data from multiple sources based on a specified join condition.
The correct answer is A) Stored Procedure. This option is correct because a stored procedure is an example of an unconnected transformation.
which of the following statement about union transformation is False
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You can create input groups
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You can rename the transformation
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You can edit or delete the output group
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You can delete port in ip group
To answer this question correctly, the user needs to know about the Union transformation in Informatica PowerCenter.
Let's go through each option and explain why it is true or false:
A. You can create input groups: This statement is true. In the Union transformation, you can create input groups to add multiple input pipelines into a single output pipeline. This allows you to combine data from different sources.
B. You can rename the transformation: This statement is true. You can rename the Union transformation to any valid name that reflects its functionality.
C. You can edit or delete the output group: This statement is false. You cannot edit or delete the output group of a Union transformation. Once an output group is created, you can only add ports to it, but you cannot modify or remove the group.
D. You can delete port in the input group: This statement is true. You can delete ports in the input group of a Union transformation by selecting the port to be deleted and pressing the delete key.
Therefore, the answer is:
The Answer is: C
How many mappings can be assigned to a session
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one
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two
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many sessions
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three
AI Explanation
To answer this question, we need to understand the concept of mappings and sessions.
In computer science and programming, a mapping refers to the association or relationship between two sets of elements. In the context of sessions, a session is a period of interaction between a user and a computer system.
Based on this information, the correct answer is:
Option A) one - This option is correct because a session can have only one mapping. During a session, there is typically one-to-one mapping between a user and the computer system, allowing for a single user to interact with the system at a time.
Option B) two - This option is incorrect because a session cannot have multiple mappings. Only one user can be directly associated with a session at a time.
Option C) many sessions - This option is incorrect because it refers to the number of sessions, not the number of mappings per session.
Option D) three - This option is incorrect because a session can have only one mapping.
Therefore, the correct answer is A) one.
Which of the following cashes used in informatica
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Dynamic
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static
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dynamic,static
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Dynamic,Static,persistent
AI Explanation
To answer this question, we need to understand the concept of caching in Informatica.
Caching is a technique used in Informatica to improve the performance of data integration processes. It involves temporarily storing data in memory so that it can be accessed quickly and efficiently.
In Informatica, there are three types of caches that can be used:
A. Dynamic Cache - This type of cache is created dynamically during the session and is used to store data that is frequently accessed or shared among multiple transformations. The dynamic cache is created and populated as the data flows through the session.
B. Static Cache - This type of cache is created at the beginning of the session and is used to store data that remains constant throughout the session. The static cache is populated once and remains unchanged throughout the session.
C. Persistent Cache - This type of cache is created at the beginning of the session and is used to store data that needs to be retained across multiple sessions. The persistent cache is stored on disk and can be reused in subsequent sessions.
Based on the given options, the correct answer is D. Dynamic, Static, Persistent. This option includes all three types of caches that can be used in Informatica.
which of the following transformation is not using to connect more than one table
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joiner
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source qualifier
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lookup
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sorter
AI Explanation
To answer this question, you need to understand the different transformations used in connecting more than one table in a database or data integration process.
Let's go through each option to understand why it is correct or incorrect:
Option A) joiner - This option is correct because the joiner transformation is used to combine data from multiple tables based on a common key column.
Option B) source qualifier - This option is correct because the source qualifier transformation is used to define the properties of a relational source table, including the SQL query to retrieve data from the table.
Option C) lookup - This option is correct because the lookup transformation is used to retrieve data from a reference table based on a matching key column.
Option D) sorter - This option is incorrect because the sorter transformation is not used to connect more than one table. It is used to sort data based on one or more key columns.
The correct answer is D) sorter. This option is incorrect because the sorter transformation is not used to connect more than one table.
Therefore, the correct answer is D) sorter.